采访：一天拍多少张照片
最近我在采访中被问到这个问题“世界各地一天拍摄了多少张照片”。我知道这很模糊，但我尝试向面试官提出很多问题以从他那里获得更多信息，但最终面试官要求我只给我一个数字
我的答案：40亿
面试官：为什么？
我：因为我喜欢“40亿”这个数字
面试官：大笑起来
，然后在他转向其他问题后
面试官试图从我的回答中得出什么结论，他问这个问题的原因可能是什么？
编辑：面试的是QA工程师职位
I was recently asked this question in interview "How many photographs are taken in a day around the world". I know its vague, but i tried asking interviewer lot of questions to get more information from him, but in the end yeah interviewer asked me to just give me a number
My answer : 4 billion
Interviewer : Why ?
Me: Because i like the number "4 billion"
Interviewer: Busted into laughs
And then after he moved on to other questions
What is interviewer trying to conclude from my answer and what could be the reason he asked ?
Edit: The interview was for QA Engineer position
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在我看来，这类问题是考察面试者逻辑能力和跳出思维能力的一种方式。
这是另一个例子：澳大利亚的灯泡市场，尽管它是为了另一个行业，因此对答案的期望标准更高。
额外奖励（与问题并非 100% 相关）：QA 职位的另一个典型问题是如何测试电梯< /a>，不要将其与 电梯测试。
In my opinion, this kind of questions is a way to assess the ability of logic and to think out-of-box of the interviewee.
Here is another example: the market for light bulbs in Australia, though it is for another industry, and thus of higher standard of expectation of the answer.
Bonus (not 100% related to the question): another typical question for a QA position is how to test an elevator, and do not confuse it with the elevator test.
这就是 Joel Spolsky 所说的“粗略问题”。
“一个好的粗略问题可以让你与候选人进行对话，从而帮助你对他们是否聪明形成看法”
更好的策略可能是尝试找出一个甚至模糊合理的答案。
This is what Joel Spolsky refers to as a "back of the envelope question".
"A good back-of-the-envelope question allows you to have a conversation with the candidate that helps you form an opinion about whether they are smart"
A better strategy would probably have been to try and figure out an even vaguely reasonable answer.
这是一个费米问题，旨在检查估计技能。
This is a fermi question, intended to check the estimation skills.